Vintage 1960s Milk Porter Sputnik Sales Brochure from the Milk Porter Co. Ltd. in Scarborough, Ontario, Canada. This double-sided one sheet brochure measures 8.5 x 11 inches in size and features a vibrant green color scheme. The brochure showcases the Sputnik product, with a focus on its agricultural uses. This original piece of advertising from the 1960s is perfect for collectors of vintage agricultural ads and memorabilia.